If anyone is familiar with Speed Turtle Engineering's plug-and-play flasher kit, does their system work on the 2021's? The system turns all of the exterior lights into flashers for construction or emergency personnel.

Thank you.

 

Im hoping to find out myself... just asked on one of the emergency lighting forums I'm a part of: https://elightbars.org/forums/thread...021-f150.96697
I'd love to add one to my 21 to compliment my existing emergency lighting

 

Was this ever figured out?